CN2892977Y - Composite antitheft manhole cover - Google Patents

Abstract

A compound burglarproof manhole cover positioned in urban streets, underground inspection holes ensures the safety of passerby and vehicles and can completely prevent theft. The assembly set comprises of the three components of a seat, a manhole crib, a manhole cover. The seat is a half ball with a hole arranged uprightly through the two sides (2) of the half ball in the center. Two positioning semicircular pits (1) are symmetrically arranged on the top of the half ball. The manhole crib is a round pipe shape with no steps on the inner wall; the lower end is an arc shaped bevel (1) with two positioning half balls (2) symmetrically arranged on the bevel. The manhole cover is provided with a cylinder exterior, and an umbrella-shaped cavity with a plurality of arc umbrella bone-type reinforce girders (1) evenly arranged and supported inside. The compound burglarproof manhole cover is made from concrete or plastic waste with waste tyre sliced into strips and substituting mechanic triangle straps for the reinforcing steel bars.

Description

Combined anti-theft inspection shaft lid

Affiliated technical field

The utility model relates to the device of a kind of avenue " underground inspection shaft and cover plate ", especially can protect pedestrian and vehicle safety, thoroughly stops the inspection shaft lid of being stolen.

Background technology

At present, known inspection shaft lid structure be by, square plate shape base circle has the rank walling crib, the conical bottom well lid combines.

Material is respectively: cast iron, mixed plastic, iron and steel concrete, fiberglass resin.The inspection shaft lid of above material manufacturing all exists certain problem and shortcoming, and is as follows:

1., cast iron inspection shaft lid because be ironwork, thus become robber's pilferage target, for meagre interests by the mad theft of robber, remain incessant after repeated prohibition.

2., mixed plastic lid, because of its material therefor toughness low-intensity difference is easily aging, inside does not have reinforcing rib, no pulling force, so the load-bearing coefficient is low, the common well lid that is damaged by pressure by vehicle on the road.

3., iron and steel coagulation earth mulch, because of inside accompanies iron and steel stolen phenomenon is arranged also, the manufacturing cost height, costing an arm and a leg is difficult to large tracts of land and promotes.

4., fiberglass resin lid manufacturing cost height, after exposing to the weather, wear out easily, break for a long time, application life is impermanent.

5., above inspection shaft lid all exists a common shortcoming to be, stiffening girder is that groined type is arranged in the lid center, does not extend to lid edge, whole tapered, the edge is difficult to bear gravity, impaired well lid is edge break mostly.

Summary of the invention

In order to overcome the stolen serious and high difficult problem of manufacturing cost of existing inspection shaft lid, the utility model provides a kind of inspection shaft lid, and this inspection shaft lid can not only be stopped to steal, and cheap for manufacturing cost, durable.

The technical scheme that its technical problem that solves the utility model adopts is: combined anti-theft inspection shaft lid, be that three parts are formed a cover, it is respectively the spherical mesopore base of semicircle, tubular stepless wedged bottom walling crib, cylinder umbrella shape chamber well lid, this inspection shaft assembly is made by whole concrete or the cast of disposable waste plastic.Substitute reinforcing bar with discarded vehicle tyre and machinery with the slitting shape of V belt and pour into inside, not only increase pulling force, the behavior that reduces cost and thoroughly stop to be stolen.

This inspection shaft assembly interconnects order: the spherical mesopore base of semicircle top is connected with tubular stepless wedged bottom walling crib inclined-plane, the tubular stepless wedged bottom walling crib other end is connected with cylinder umbrella shape chamber well lid, the spherical mesopore base of semicircle is not only supporting tubular stepless wedged bottom walling crib, bearing extraneous pressure simultaneously from the transmission of cylinder umbrella shape chamber well lid, the spherical mesopore base of semicircle top is respectively equipped with symmetrical semicircle hole, two location, the inclined end face of tubular stepless wedged bottom walling crib is respectively equipped with two symmetrical location semi-round balls, when the spherical mesopore base of semicircle top is connected with tubular stepless wedged bottom walling crib inclined-plane, their affiliated separately location semi-round balls are identical mutually with semicircle hole, location, play the effect of concentric locating, the inner chamber of cylinder umbrella shape chamber well lid is supported by several umbrella-rib shape stiffening girders, has strengthened the compressive resistance of well lid effectively.

The beneficial effects of the utility model are: 1., do not add iron and steel with the whole concrete manufacturing energy-conservation, stop to steal, with low cost.2., with disposable waste plastic manufacturing, twice laid, elimination white garbage, minimizing environment pollution.3., novel profile structure, improved the load-bearing coefficient of self effectively.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is well lid vertical section, a cylinder umbrella shape of the present utility model chamber constructional drawing.

Fig. 2 is cylinder umbrella shape chamber well lid front D structure figure, and 1 is the umbrella-rib shape stiffening girder among the figure.

Fig. 3 is cylinder umbrella shape chamber well lid reverse side D structure figure, and 1 is the umbrella-rib shape stiffening girder among the figure.

Fig. 4 is tubular stepless wedged bottom walling crib front D structure figure.

Fig. 5 is tubular stepless wedged bottom walling crib reverse side D structure figure, and 1 is the circular arc wedged bottom among the figure, the 2nd, and the location semi-round ball.

Fig. 6 is the spherical mesopore base front surface of semicircle D structure figure, and 1 is semicircle hole, location among the figure, the 2nd, and centre bore.

Fig. 7 is an integral installation design sketch of the present utility model, among the figure 1, tubular stepless wedged bottom walling crib, and 2, cylinder umbrella shape chamber well lid, 3, the umbrella-rib shape stiffening girder, 4, centre bore, 5, the spherical mesopore base of semicircle, 6, inspection shaft, 7, ground surface.

The specific embodiment

In Fig. 3, umbrella-rib shape stiffening girder (1) is evenly distributed in the umbrella shape chamber of cylinder umbrella shape chamber well lid, and every umbrella-rib shape stiffening girder (1) all is added with discarded vehicle tyre and machinery substitutes reinforcing bar with V belt.

Strengthen hole pressure with this, and the umbrella-rib shape stiffening girder (1) of per two symmetries all there is the standard radian, can matches, increased Area of bearing effectively with the radian on the spherical mesopore base of Fig. 6 semicircle top.

In Fig. 5, arc inclined end face (1) radian and Fig. 6 contact surface radian match, not only increased and be in contact with one another area but also well firm performance is arranged, the location symmetrical branch of semi-round ball (2) is in arc inclined end face (1), semicircle hole, location (1) radian of the radian of two location semi-round balls (2) and Fig. 6 matches, and plays the concentric locating effect.

In Fig. 6, semicircle hole, location (1) symmetrical branch is in the spherical mesopore base of semicircle top, the radian in semicircle hole, location (1) and location semi-round ball (2) radian of Fig. 5 match, the condition that facilitates for the assembling in later stage, centre bore (2) runs through the spherical mesopore base of semicircle, diameter is slightly less than cylinder umbrella shape chamber well lid, is the construction passage that enters inspection shaft.

In Fig. 7, assembling sequence is: the spherical mesopore base (5) of semicircle because its bottom surface is circular, thus can be fit to various inspection shaft (6) use (such as, square or circular), integral body is the semicircle sphere, than the load-bearing property height of plate shaped base; Tubular stepless wedged bottom walling crib (1), its external diameter are greater than cylinder umbrella shape chamber well lid (2), and interior diameter equals cylinder umbrella shape chamber well lid (2), and cylinder umbrella shape chamber well lid (2) is the energy longitudinal sliding motion in tubular stepless wedged bottom walling crib (1); Cylinder umbrella shape chamber well lid (2) diameter is greater than centre bore (4), and the bottom surface engages with the spherical mesopore base (5) of semicircle top, and the well lid surface coexists with tubular stepless wedged bottom walling crib (1) end face and ground surface (7) on the horizontal plane.

Claims (3)

1, a kind of combined anti-theft inspection shaft lid, by base, walling crib, well lid, three synthetic covers of part der group, it is characterized in that: the spherical mesopore base of semicircle top is connected with tubular stepless wedged bottom walling crib inclined-plane, and the tubular stepless wedged bottom walling crib other end is connected with cylinder umbrella shape chamber well lid.

2, combined anti-theft inspection shaft lid according to claim 1, it is characterized in that: base is the semicircle sphere, there is symmetrical semicircle hole, two location on the porose hemisphere two sides of vertically running through, center, hemisphere top; Walling crib is a tubular, and tube wall does not have step, and the bottom is the circular arc inclined-plane, and two symmetrical location semi-round balls are arranged on its inclined-plane; Well lid is a cylindrical shape, and umbrella shape inner chamber has several arc umbrella frame shape stiffening girders to be evenly distributed support in its umbrella shape chamber.

3, combined anti-theft inspection shaft lid according to claim 1 is characterized in that: made by whole concrete or discarded plastic garbage cast, the unwanted vehicle tire of the slitting shape of inner adding and machinery substitute reinforcing bar with V belt and use.